ભાણેજે ભાગ નહીં, ને જમાઈએ લાગ નહીં.

bhāṇējē bhāga nahīṁ, nē jamāīē lāga nahīṁ.

Literally: A sister's son has no share in the inheritance, and a son-in-law has no claim.
What it means: Relatives by marriage or through sisters have no legal right to ancestral family property.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.